{
	"id": "has-lang",
	"evaluate": "has-lang-evaluate",
	"options": {
		"attributes": ["lang", "xml:lang"]
	},
	"metadata": {
		"impact": "serious",
		"messages": {
			"pass": "The <html> element has a lang attribute",
			"fail": {
				"noXHTML": "The xml:lang attribute is not valid on HTML pages, use the lang attribute.",
				"noLang": "The <html> element does not have a lang attribute"
			}
		}
	}
}
